Color image forming apparatus and method using plural photosensitive drums
US5870659A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 3, 1997 |
| Grant date | Feb 9, 1999 |
| Priority date | — |
| Expiry date | Sep 3, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0194
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In an image forming apparatus, three or more (four in this case) cylindrical photosensitive members 1 to 4 on which latent images are formed and developed through use of toner to thereby produce toner images, are arranged so as to share a tangential line in common, and a cylindrical intermediate transfer member 51 is provided. Alternatively, a first unit containing one or more image carriers is positioned next to a first transfer member and a second unit containing one or more image carriers is positioned next to a second transfer member such that there is reflectional symmetry between the first and second units and the transfer members.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.